Structure 1915 · Buchanan County, MO

Rp Is229s To Mo759 over Cst Monterey ST Bnsf Rr

Carries Rp Is229s To Mo759 over Cst Monterey ST Bnsf Rr, S 17 T 57 N R 35 W.

Overall conditionFair

Set by its lowest-rated component: Superstructure at 5 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating5/9 · Fair
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,002 FT OVERALL200 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9 · sets the ratingSubstructure 7/9

1,002 ft end to end, longest span 83 ft: about 2.8 football fields. Lengths and the semi-truck on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a girder bridge.

Built197947 years old
Length1002.0 ft305.4 m
Daily traffic2,771counted 2024
Last inspectedSeptember 2024every 24 months

Location

StateMissouri
CountyBuchanan
LocationS 17 T 57 N R 35 W
CarriesRp Is229s To Mo759
CrossesCst Monterey ST Bnsf Rr
Coordinates39.75359, -94.85575

Physical Characteristics

MaterialSteel Continuous
DesignGirder and Floorbeam
Total Length1002.0 ft (305.4 m)
Max Span83.0 ft (25.3 m)
Deck Width26.2 ft (8 m)
Deck Area2443.2 sq m
Main Spans15
Year Built1979

Traffic

Avg Daily Traffic2,771 (2024)
Truck Traffic18%
Lanes On Bridge1
Lanes Under Bridge2

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number1915

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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